Car-underframe.



C. T. WESTLAKB.

CAR UNDERIRAME.

APPLICATION FILED JULY 11, 1910.

Patented June 20, 1911.

mrfmonms mees m1 wasumaron. s. c,

' natal-TGR KM #/e i, gam/WM s ar orne.

CHARLES T. WESTLAKE; OF ST. LOUIS, MISSOURI, ASSIGNOR T0 CAST STEEL PLATFORM COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF DELAWARE.

CAR-UNDERFRAME.

Specification of Letters Patent.

Application led July 11, 1910.

Patented J une 20, 1911. serian No. 571,362.

To all whom 'it may concern.

Be it known that I, CHARLES T. WEST- LAKE, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented a new and useful Improvement in Car-Underframes, of which the following is a specification.

My invention relates particularly to that class of metallic car underframe in which the longitudinal center-sills are intermediate to, and terminate at the rear sides of the body-holsters, whether single or double, having rearwardly projecting members to which the end portions of the said sills are attached, such as shown in the United States Letters Patent relating to car underframes, Numbers 778,973, 1905, 989,934, 190s, and 936,159, 1909: and my invention has for its object to provide improved means for fixing the said parts together, whereby greater rigidity thereat is obtained and resistance of the underframe to end shock correspondingly increased.

The structure herein shown and described is an improvement on the structure shown and described in applications for United States Letters Patent filed by me July 1, 1910 Serial No. 569,886 and July 5, 1910, Serial No. 570,448, and one of the principal features of my present invention is to provide grooves or pockets at the corners of the box like structure projecting rearward from the body bolster, and which grooves or pockets accommodate the inwardly projecting flanges of the center sills which are attached to the box like structure.

My invention consists in features of novelty as hereinafter described and claimed, reference being had to the accompanying drawing forming part of this specification, whereon,

Figure 1, is a top plan view of one of the body-holsters and combined end portions of the two opposite longitudinal center-sills of a metallic car underframe constructed and fixed together according to my invention; Fig. 2, a vertical longitudinal section thereof to enlarged scale on line A2, 2, in Fig. 1; Fig. 3, a vertical transverse section thereof to enlarged scale on line 3, 3, in Fig. l, and Fig. 4, a similar view to Fig. 3, showing an alternative shape of the center-sills.

Like letters and numerals of reference de- 'note like parts in all the figures.

a represents the body-bolster (broken away) opposite rearwardly projecting upright side Y members or webs 1, of suitable height corresponding in the present case approximately to the depth between the top and bottom flanges 2, 2', respectively, of the body-bolster a, and a horizontal top member 3 over,"and at right angles to the side members 71,-1n

the plane of the top flange 2 of the body` bolster a, the side members 1 having their top longitudinal edge portions integrally united to the corresponding edge portions of the top member 3 so as to form therewith a rearward projection c from the bolster ai channel-shaped in cross section and open at the bottom, and having internal longitudinal top corner pockets or recesses 4 for the purpose hereinafter particularly specified.

In the attachment of the I-shaped centersills (Figs. l, 2, and 3) to the body-bolster a as above described, the end portion of each sill F) is inserted within the projection c with its web 5 against the inner face of the corresponding upright side member l, to which it is fixed by rivets 6, the end of the web 5 being approximate to the web 7 of the bolster a, and the ends of the top and bottom flanges 8, 8, respectively, of the center-sills b at, or approximate to the rear edges of the top and bottom flanges (or equivalent members) 2, 2', of the bolster a, while the end portions of the outer top and bottom flanges 8, 8, of the sills o adjacent to their said ends and inclosed by the projection c, lie within and along the pockets or recesses 4, beneath the top member 3 of the projection 0, in which position of the parts, a plate 9 adapted to span and cover the end portions vof the center-sills b at the top, is interposed between the latter and the top member 3; the top flanges 8 of the sills I) the plate 9, and the top member 3,l

which in their assembled position bear against each other, being rigidly Xed together by rivets 10.

In Fig. 4, channel-shaped center-sills b having their top and bottom flanges 1l, 11, arranged inward, are substituted for the I- shaped sills b previously described, and the pockets or recesses l eliminated, but otherwise the construction is similar tothat shown in Figs. 1, 2, and 3, and needs no further description.

A great advantage of my invention is that by forming the longitudinal corner pockets 4f in the projection c of the bolster a so as to clear the outer top flanges S of the sills Z), and fixing the latter by their webs 5, within, and to the walls of the projection 0, combined with the top plate 9 interposed between the4 sills b and the top horizontal member 3, the difiiculty of adapting the projection c to the contour of the outer fianges 8 is obviated and a rigid connection of the sills ZJ to the body-bolster a insured.

What I claimas my invention and desire to secure by Letters Patent is 1. rIhe combination of a bolster having an integral flat plate, inwardly projecting shelf,

flanged center sills arranged under said shelf, and a plate interposed between said center sills and said shelf, said plate ex- Vtending inwardly beyond the shelf, said parts being connected together by rivets.

2. The combination of a bolster having an integral box-like extension, flanged center sills arranged within said box-like extension and whose webs are riveted to the vertical walls thereof, and a plate interposed between said sills and the top wall of said extension, said plate being secured to said extension and said sills by rivets.

3. The combination of a bolster having a box-like extension grooved to receive the flanges of the center sills, center sills arranged within said extension and whose webs are secured to the side walls thereof, and a plate interposed between the sills and the top wall of the extension, said plate being extended into the grooves and riveted to said top wall and to the top flanges of said center sills.

CHARLES' T. WESTLAKE.

Vitnesses: Y

EDWARD W. FURRELL, B. V. HQJoHNsoN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, I). C. 

